Merge pull request #530 from radical-cybertools/feature/version_warning

pypi version check

src/radical/entk/__init__.py

@@ -11,14 +11,26 @@
 
 # ------------------------------------------------------------------------------
 #
-import os            as _os
-import radical.utils as _ru
+import warnings
+import os                           as _os
+import radical.utils                as _ru
+import requests                     as req
+from packaging.version import parse as parse_version
+
+def custom_formatwarning(msg, *args, **kwargs):
+    # ignore everything except the message
+    return str(msg) + '\n'
+
+warnings.formatwarning = custom_formatwarning
 
 version_short, version_detail, version_base, version_branch, \
         sdist_name, sdist_path = _ru.get_version(_os.path.dirname(__file__))
 
 version = version_short
 
-
+r = req.get("https://pypi.org/pypi/radical.entk/json")
+versions = r.json()["releases"].keys()
+last_version = list(versions)[-1]
+if parse_version(version) < parse_version(last_version):
+    warnings.warn("WARNING: You are using radical.entk version %s, however version %s is available." % (version, last_version), UserWarning)
 # ------------------------------------------------------------------------------
-